1 Explain that a population pyramid shows the age and sex structure of a population. 2  Point to the horizontal bars, which show the percentage (or the absolute number) of males and females in each age group. 3  Have students interpret the chart.
1 Dehumidifier capacity is generally measured by how many pints of water a unit removes from the air in 24 hours. 2  A mini-dehumidifier (1-10 pints) for a bathroom, closet or under a counter usually costs $40-$70.
Dehumidifier Energy Costs. The initial costs of buying a dehumidifier are obvious, you can get a great machine for just under Â£120 (check out the current sale savings here). So I think itâs best to concentrate on the electricity costs. First of all, the cost of electricity currently is roughly 15 pence per kWh.n a UK house the humidity is unlikely to ever hit 100%, so for this calculation weâll assume 75%. This house would hold an extra 5.4kg of water in the air at 75% rather than the 45% ideal.